Whistle.



R. M. STUART.

WHISTLE.

APPLICATION FILED NOV. 25, 1913.

Patented Nov. 10, 1914.

IH I NORRIS PETERS C0., FHTL LlTh WSHINGTUN- D. C,

" "Umain sra-rias ROBERT ivi. STUART, 'or L aliarse.

To (MZ w71 om 'it may concern Be it known that I, ROBERT M. STUART, acitizen of the United States, residing at Los Angeles, in the county ofLos Angeles and State of California, *have invented a new and'usefulWhistle, of which the i015 lowing is a specification; p n, o Thisinvention relates to a whistle intend-` ed for use particularly bypolicemen and traflic oicers, and the main object of the invention is toprovide a whistle which is adapted to be blown either by applying to themouth of the user or by means of a bulb or other device. n f l Otherobjects of the invention will appeal hereinafter.

The 4accompanying. `drawings illustrate embodiments of my invention, andreferring thereto:

Figure 1 is a side elevation of the whistl applied to a bulb, showing indotted lines the position to which the whistle is turned for blowing bythe mouth. Fig. 2 is a side elevation ofthe whistle and its mounting.Fig. 3 is a section on line V:i3-oe3, inxFig. 2. Fig. 4 is a sectionalview of another Aform of blowing device for the whistle, the whistlebeing shown thereon in elevation.y

Referring to Figs. 1 to 8, the whistle indicated at 1 may be of anyusual or suitable form, being provided with an inlet or mouth piece2 andan outlet opening 3, and with suitable means for producing sound by thepassage of air iromthe inlet or mouthpiece to the outlet opening. Saidwhistle is mounted by pivots Ll in a frame consisting of side plates 5extending :from a tubular body 6, said tubular body having-at one endsuitablemeans such as a screw threaded portion 7 forL engagementv with ablowing device hereinafter described.v Said tubular body 6 is furtherprovided with means for making an air tight joint with the mouth pieceof the whistle when the latter is turned to a certain position shown inFig. 3, saidmeans consisting, for example, of a rubber plugS inserted inthe tubular member 6 and having a bore or passage 9 which registerswiththe inlet or mouth piece 2 of the whistle. A spring 10 secured at oneend of one ofthe side plates 5 is formed at its other end with a pin 11extending through a perforation` 12 in said side plate and adapted toengage in either one of two depressions or recesses PA TA @FFI-CE;

as ANGELEs, CAL'irronlvra.;L t

"wnrsTLnfl i y speicatioh of Letters raient. Pafnted Non 10,` '1914iapplication varea November 25,v ma .sei-iai No. 802,922.,4 j o Allinionle sidefoi' the whistlel so as to retain saidwhistle either inthefposition shown in Fig. El with its inlet ormouth piece 2 registeringwith, ,the passage 9, or in `position shown in dottedline in Fig. 1, inywhich the. whistleis' extended at right angles to thesupporting.fra-me, so as to present its inlet orunouth piece 1nconvenient position for blowing by the mouth of the user. The whistle 1may lbe provided with the usual ring 15, which in this case serves asconvenient means for turning the whistle on its pivo'ted support as wellas for carrying the vdevice as a whole. 1 l

Any suitable means may be provided for forcing air through the passage 9to blow' .f tight j oint therewith.

In using this form of the invention the oliicer may use the whistlemanually, by turning the whistleto the position shown in Figs. 2 andBand pressing the bulb 16 ywhenever he desiresto operate the whistle,

the bulb 16 serving in that case as a handle as well as an operatingdevice for the whistle, or, if 'he sofdesires, he may at any time usethe whistle in the ordinary manner by swinging the whistle as shown indotted lines lin Fig. 1 and blowing in theinlet or mouth piece 2,"`which is then exposed in convenient position for such operation.

Instead of the rubber bulb any other suit* able blowinor means maybeused, for example, a cylinder such as indicated at 20 in Fig. 4, saidcylinder being slidably mounted on a piston 21 carried by a post 22resting on a stirrup` 23, and said cylinder being provided with anoperating grip or handle 24 which Lis bored as shown at 25, to establishcommunication between the interior of the cylinder and the inlet portion7 of the tubular member 6 of the whistle. In using hold the whistle inposition withoutusing his hands therefor, so that both hands Aare left`free for other purposes, for'example,;fin

directing` traffic. Vhen he desires tooper-` late the whistle he graspsthe handle 24 and pushes it downcausing a blast of air to be.

and frame having a passage communicatingV with said blowing device, anda whistle pivotally mounted in said frame and provided with a mouthpiece which is adapted in one position of the whistle to register withsaid passage and movable to another position in which the mouth Apieceis eX- posed. Y s

2. The combinationv of a blowing device and frame having a passagecommunicating with said blowing device, and a whistle pivotally mountedin said frame and provided with a mouth piece which is adapted Y in oneposition of the whistle to register with said passage and movable toanother Vposition in which the mouth piece is exposed, i and means onsaid frame and whistle for retaining the whistle in either of saidpositions.

In testimony whereof, I have hereunto set my hand at Los Angeles,California, this 17th day of November, 1913.

ROBERT M. STUART.

In presence of- A. P. KNIGHT, l LORRAINE E. DURRow.

Gopiesofjthis patent maybe obtained for ve cents each, by addressing theCommissioner of Patents,

` Washington, D. C.A '4 y

